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CVE-2021-20314 (GCVE-0-2021-20314)
Vulnerability from cvelistv5
Published
2021-08-12 14:37
Modified
2025-02-13 16:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- stack buffer overflow
Summary
Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.
References
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fkie_cve-2021-20314
Vulnerability from fkie_nvd
Published
2021-08-12 15:15
Modified
2024-11-21 05:46
Severity ?
Summary
Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.
References
| URL | Tags | ||
|---|---|---|---|
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1993070 | Issue Tracking, Patch, Third Party Advisory | |
| secalert@redhat.com | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB/ | ||
| secalert@redhat.com | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4/ | ||
| secalert@redhat.com | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU/ | ||
| secalert@redhat.com | https://security.gentoo.org/glsa/202401-22 | ||
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1993070 | Issue Tracking, Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB/ | ||
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4/ | ||
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| af854a3a-2127-422b-91ae-364da2661108 | https://security.gentoo.org/glsa/202401-22 |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libspf2 | libspf2 | * | |
| redhat | enterprise_linux | 7.0 | |
| fedoraproject | fedora | 33 | |
| fedoraproject | fedora | 34 | |
| fedoraproject | fedora | 35 |
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gsd-2021-20314
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.
Aliases
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"https://www.suse.com/security/cve/CVE-2021-20314.html",
"https://www.debian.org/security/2021/dsa-4955",
"https://advisories.mageia.org/CVE-2021-20314.html",
"https://security.archlinux.org/CVE-2021-20314"
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"modified": "2023-12-13T01:23:11.937544Z",
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opensuse-su-2021:1187-1
Vulnerability from csaf_opensuse
Published
2021-08-25 04:52
Modified
2021-08-25 04:52
Summary
Security update for libspf2
Notes
Title of the patch
Security update for libspf2
Description of the patch
This update for libspf2 fixes the following issue:
- CVE-2021-20314: A remote overflow in SPF parsing could lead to remote code execution (bsc#1189104)
Patchnames
openSUSE-2021-1187
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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opensuse-su-2024:10995-1
Vulnerability from csaf_opensuse
Published
2024-06-15 00:00
Modified
2024-06-15 00:00
Summary
libspf2-2-1.2.10-5.3 on GA media
Notes
Title of the patch
libspf2-2-1.2.10-5.3 on GA media
Description of the patch
These are all security issues fixed in the libspf2-2-1.2.10-5.3 package on the GA media of openSUSE Tumbleweed.
Patchnames
openSUSE-Tumbleweed-2024-10995
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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"csaf_version": "2.0",
"distribution": {
"text": "Copyright 2024 SUSE LLC. All rights reserved.",
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"date": "2024-06-15T00:00:00Z",
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cnvd-2022-19090
Vulnerability from cnvd
Title
libspf2缓冲区溢出漏洞
Description
libspf2是一个库,它允许电子邮件系统(例如 Sendmail、Postfix、Exim、Zmailer 和 MS Exchange)检查SPF 记录并确保电子邮件得到了来自它的域名的授权。
libspf2存在缓冲区溢出漏洞,该漏洞源于libspf2的SPF宏可触发缓冲区溢出,攻击者可利用该漏洞造成拒绝服务,并可能运行代码。
Severity
高
VLAI Severity ?
Patch Name
libspf2缓冲区溢出漏洞的补丁
Patch Description
libspf2是一个库,它允许电子邮件系统(例如 Sendmail、Postfix、Exim、Zmailer 和 MS Exchange)检查SPF 记录并确保电子邮件得到了来自它的域名的授权。
libspf2存在缓冲区溢出漏洞,该漏洞源于libspf2的SPF宏可触发缓冲区溢出,攻击者可利用该漏洞造成拒绝服务,并可能运行代码。目前,供应商发布了安全公告及相关补丁信息,修复了此漏洞。
Formal description
厂商已发布了漏洞修复程序,请及时关注更新: https://vigilance.fr/vulnerability/libspf2-buffer-overflow-via-SPF-Macros-36117
Reference
https://www.debian.org/security/2021/dsa-4955
https://security-tracker.debian.org/tracker/CVE-2021-20314
Impacted products
| Name | libspf2 libspf2 <=1.2.11 |
|---|
{
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"cve": {
"cveNumber": "CVE-2021-20314",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20314"
}
},
"description": "libspf2\u662f\u4e00\u4e2a\u5e93\uff0c\u5b83\u5141\u8bb8\u7535\u5b50\u90ae\u4ef6\u7cfb\u7edf\uff08\u4f8b\u5982 Sendmail\u3001Postfix\u3001Exim\u3001Zmailer \u548c MS Exchange\uff09\u68c0\u67e5SPF \u8bb0\u5f55\u5e76\u786e\u4fdd\u7535\u5b50\u90ae\u4ef6\u5f97\u5230\u4e86\u6765\u81ea\u5b83\u7684\u57df\u540d\u7684\u6388\u6743\u3002\n\nlibspf2\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8elibspf2\u7684SPF\u5b8f\u53ef\u89e6\u53d1\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff0c\u5e76\u53ef\u80fd\u8fd0\u884c\u4ee3\u7801\u3002",
"formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://vigilance.fr/vulnerability/libspf2-buffer-overflow-via-SPF-Macros-36117",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2022-19090",
"openTime": "2022-03-14",
"patchDescription": "libspf2\u662f\u4e00\u4e2a\u5e93\uff0c\u5b83\u5141\u8bb8\u7535\u5b50\u90ae\u4ef6\u7cfb\u7edf\uff08\u4f8b\u5982 Sendmail\u3001Postfix\u3001Exim\u3001Zmailer \u548c MS Exchange\uff09\u68c0\u67e5SPF \u8bb0\u5f55\u5e76\u786e\u4fdd\u7535\u5b50\u90ae\u4ef6\u5f97\u5230\u4e86\u6765\u81ea\u5b83\u7684\u57df\u540d\u7684\u6388\u6743\u3002\r\n\r\nlibspf2\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8elibspf2\u7684SPF\u5b8f\u53ef\u89e6\u53d1\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff0c\u5e76\u53ef\u80fd\u8fd0\u884c\u4ee3\u7801\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
"patchName": "libspf2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "libspf2 libspf2 \u003c=1.2.11"
},
"referenceLink": "https://www.debian.org/security/2021/dsa-4955\r\nhttps://security-tracker.debian.org/tracker/CVE-2021-20314",
"serverity": "\u9ad8",
"submitTime": "2021-09-08",
"title": "libspf2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}
ghsa-7mf9-xf4j-h63m
Vulnerability from github
Published
2022-05-24 19:10
Modified
2023-02-13 00:31
Severity ?
VLAI Severity ?
Details
Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.
{
"affected": [],
"aliases": [
"CVE-2021-20314"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-12T15:15:00Z",
"severity": "CRITICAL"
},
"details": "Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.",
"id": "GHSA-7mf9-xf4j-h63m",
"modified": "2023-02-13T00:31:18Z",
"published": "2022-05-24T19:10:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20314"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1993070"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-22"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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